import { type InvalidationPush, type Request } from './messages.js';
type SendOptions = {
    namespace: string;
    timeout: number;
    failsafe: 'resolve' | 'reject';
};
type ProcessLike = {
    send: (msg: unknown) => boolean | void;
    on: (event: 'message', cb: (msg: unknown) => void) => void;
};
type DistributiveOmit<T, K extends keyof never> = T extends unknown ? Omit<T, K> : never;
type RequestPayload = DistributiveOmit<Request, 'id' | 'namespace' | 'source'>;
type InvalidationHandler = (msg: InvalidationPush) => void;
interface IpcClient {
    sendToPrimary: <T = unknown>(opts: SendOptions, payload: RequestPayload) => Promise<T>;
    sendToPrimaryWithMeta: <T = unknown>(opts: SendOptions, payload: RequestPayload) => Promise<{
        value: T;
        version: number;
    }>;
    subscribeInvalidations: (namespace: string, handler: InvalidationHandler) => () => void;
}
export declare function createIpcClient(proc: ProcessLike): IpcClient;
export declare function getDefaultClient(): IpcClient;
export {};
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